Determining the TypeScript Version within Visual Studio Projects

This method leverages the command-line tool included with the TypeScript installation. Here's an example:

1. Open the Start Menu and search for "Developer Command Prompt for VS** (replace the version number with your specific Visual Studio version).**
2. This will launch a command prompt window associated with Visual Studio.
3. Type the following command and press Enter:

tsc -v

1. The output will display the installed TypeScript version.

Checking the Project Properties (For Existing Projects):

If you're working on an existing project that uses TypeScript, you might be able to find the version information within the project properties. However, this method isn't available for all project types in Visual Studio.

These are the general steps, but the specific way to access project properties might vary depending on your Visual Studio version and project type. Here's a rough guideline:

1. Open your existing project in Visual Studio.
2. Right-click on the project name in the Solution Explorer and select Properties.
3. Look for a section related to TypeScript or language settings. This might be under Build or Compile options depending on the project type.
4. If the TypeScript version is explicitly mentioned in the properties, you'll find it there.

For newer versions of Visual Studio (generally starting from 2017 versions), you can check the installed TypeScript version through the Extension Manager. Here's how:

• Go to Tools > Extensions and Updates.
• In the search bar, type "TypeScript".
• The installed version will be displayed next to the "TypeScript Language Service" extension.

Checking the "tsconfig.json" File (For Projects):

Many TypeScript projects use a configuration file named "tsconfig.json". This file holds various settings related to the project's TypeScript setup. Here's how to find the relevant information:

• Look for the "tsconfig.json" file in the Solution Explorer. It's usually located at the project root directory.
• Open the file.
• Search for a property named "compilerOptions" or "extends".
• If the configuration extends another file ("extends" property), you might need to locate and check that file as well.

Examining the Output Window (During Compilation):

When you compile a TypeScript project in Visual Studio, sometimes the output window might display information about the used TypeScript version. This method might not be as reliable as others, but it can be a quick way to get a hint.

• Compile your project (usually through the "Build" menu).
• Look at the "Output" window in Visual Studio.
• Sometimes, the compilation messages might mention the TypeScript version being used.